How can I tell whether I'm running a 32 or 64 bit kernel?



The command "isainfo" was provided for precisely that reason;



64% isainfo -kv
64-bit sparcv9 kernel modules

32% isainfo -kv
32-bit sparc kernel modules

amd64% isainfo -kv
64-bit amd64 kernel modules


Solaris 2.6 and earlier releases are always 32 bit and lack the
"isainfo" command.





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